Letter | Published:

Electrical Sensitivity of the Ampullæ of Lorenzini

Naturevolume 187page957 (1960) | Download Citation



ELECTROPHYSIOLOGICAL investigation has shown that the ampullæ of Lorenzini of elasmobranch fishes are sensitive both to slight changes of temperature1 and also to weak mechanical stimuli2. But neither sensory modality is convincing as the biologically adequate stimulus, for the temperature-sensitive regions are buried deep in the body (there being no apparent reason for the great anatomical development of the tube system), and the mechanical sensitivity is quantitatively less than that of the lateral line without being qualitatively very distinct.

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  1. 1

    Sand, A., Proc. Roy. Soc., B, 125, 524 (1938).

  2. 2

    Murray, R. W., J. Exp. Biol., 37, 417 (1960).

  3. 3

    Murray, R. W., J. Physiol., 145, 1 (1959).

  4. 4

    Fessard, A., edit. by Grassé, P.-P., “Traité de Zoologie”, 13, 1143 (1958).

  5. 5

    Lissmann, H. W., J. Exp. Biol., 35, 156 (1958).

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  1. Department of Zoology and Comparative Physiology, University of Birmingham

    • R. W. MURRAY


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